Finding the Third Proportional to 442,476 and 671,869.50

Step by Step Solution

1. Step 1: Write the proportion equation
   442,476 : 671,869.50 = 671,869.50 : x
2. Step 2: Convert to fraction form
   442,476/671,869.50 = 671,869.50/x
3. Step 3: Cross multiply
   442,476x = 671,869.50 × 671,869.50
4. Step 4: Simplify right side
   442,476x = 451,408,625,030.25
5. Step 5: Solve for x
   x = 451,408,625,030.25/442,476
6. Step 6: Final answer
   x = 1,020,187.82